<html>
    <head>
      <base href="https://bugs.llvm.org/">
    </head>
    <body><table border="1" cellspacing="0" cellpadding="8">
        <tr>
          <th>Bug ID</th>
          <td><a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - aggregate initialization in new expression fails"
   href="https://bugs.llvm.org/show_bug.cgi?id=39988">39988</a>
          </td>
        </tr>

        <tr>
          <th>Summary</th>
          <td>aggregate initialization in new expression fails
          </td>
        </tr>

        <tr>
          <th>Product</th>
          <td>clang
          </td>
        </tr>

        <tr>
          <th>Version</th>
          <td>7.0
          </td>
        </tr>

        <tr>
          <th>Hardware</th>
          <td>PC
          </td>
        </tr>

        <tr>
          <th>OS</th>
          <td>Linux
          </td>
        </tr>

        <tr>
          <th>Status</th>
          <td>NEW
          </td>
        </tr>

        <tr>
          <th>Severity</th>
          <td>enhancement
          </td>
        </tr>

        <tr>
          <th>Priority</th>
          <td>P
          </td>
        </tr>

        <tr>
          <th>Component</th>
          <td>C++11
          </td>
        </tr>

        <tr>
          <th>Assignee</th>
          <td>unassignedclangbugs@nondot.org
          </td>
        </tr>

        <tr>
          <th>Reporter</th>
          <td>szymon.romik@gmail.com
          </td>
        </tr>

        <tr>
          <th>CC</th>
          <td>blitzrakete@gmail.com, dgregor@apple.com, erik.pilkington@gmail.com, llvm-bugs@lists.llvm.org, richard-llvm@metafoo.co.uk
          </td>
        </tr></table>
      <p>
        <div>
        <pre>template<typename T>
struct A {
         A() {};
        ~A() {};
};

struct B {
        A<int> a;
        A<int> b;
};


int main() {
    new B{};
    return 0;
}

Error message is confusing:
In function `main':
prog.cc:(.text+0x76): undefined reference to `A<int>::~A()'
clang-7: error: linker command failed with exit code 1 (use -v to see
invocation)

However, it works with clang trunk.

It might be canonical version of problem introduced here:
<a class="bz_bug_link 
          bz_status_NEW "
   title="NEW - Crash on aggregate initialization of a struct containing members inherited from std::vector"
   href="show_bug.cgi?id=35835">https://bugs.llvm.org/show_bug.cgi?id=35835</a></pre>
        </div>
      </p>


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